Kuaj cov yam ntxwv ntawm qhov mob rotor peb theem phom sij asynchronous
Lub ntsiab feature ntawm lub qhov rotor koog peb theem asynchronous yog tias nws cov rotor winding tau txuas nrog koob nrog cov ntaub ntawv resistor, thiab tag nrho cov tsis kam ntawm lub rotor winding loop hloov tau los ntawm kev hloov cov tsis kam ntawm cov ntaub ntawv resistor, li hloov nws pib tam sim no thiab pib lub zog. Thaum twg cov lus thov kuj loj, pib qhov tam sim no me me thiab lub pib lub zog yog loj. Raws li nws cov cwj pwm, xws li cov motors yog siv nyob rau hauv cov kev siv rau qhov twg lub hwj huam mov muaj peev xwm me thiab siab pib torque yog yuav tsum tau ua. Vim hais tias sab nraud kuj ntawm rotor yuav tau kho nyob rau hauv ib yam qee yam, muaj cov ntawv nyob rau hauv tej cuab tam uas yuav tsum tau me me ntawm kev cai tswj ceev. .
Tej yam khoom sib txawv thiab cov kev xeem
● Kev ntsuam xyuas qhov kev ntsuas ntawm stator thiab rotor voltage piv
Tus stator thiab rotor voltage cim yog qhov ntsuas xyuas tau ua nyob rau hauv cov kev kho mob ntawm qhov mob rotor peb theem asynchronous lub cev. Qhov kev ntsuam xyuas rau kev txiav txim siab txog qhov sib piv ntawm lub nruab nrab ntawm lub qhov hluav taws xob ntawm lub qhov rotor peb theem ntawm asynchronous kuj tseem raug xa mus rau kev ntsuas qhov qhib qhov kev ntsuas hluav taws xob ntawm qhov rotor.
(1) Kev xeem. Ua ntej txoj kev kuaj no muaj zog, thiaj li tiv thaiv tau lub rotor ntawm kev hloov vim yog lub tshuab tsim los ntawm qhov sib luag ntawm cov tub ntxhais kawm thaum lub zog loj, lub rotor yuav tsum tau thaiv los ntawm qhov ntsuas ua ntej. Ua ntej thaiv lub rotor, thawj zaug tig ntawm lub hwj chim kom pom qhov kev taw qhia ntawm kev sib hloov ntawm lub rotor, thiab tom qab ntawd nruab rau lub twj tso kua nplaum. Rau cov cav ntoo me me, cov cuab yeej siv zog dua qub yuav siv tau los txhawb qhov tseem ceeb ntawm txoj kev sib tw ua kom tiav.
Thaum kuaj, peb lub theem cua ntawm qhov rotor tau qhib. Qhov sib npaug ntawm qhov tsis dhos ntawm U1N ntawm qhov sib ncaim tau muab tso rau lub stator winding. Lub zog ntawm peb qhov kev sib tw ntawm lub tshuab hluav taws xob (generormotive force) tau tsim los ntawm peb lub voj voog (feem ntau hu ua rotor kab voltages U21, U22, U23) ntsuas ntawm txhua ob qho khoom pov npav. Thaum ntsuas, siv lub ntsuas pa thiab cov ntawv pov thawj nrog rwb thaiv tsev, thiab saib xyuas los tiv thaiv hluav taws xob.
● Kev ntsuas ntawm DC kev tiv thaiv ntawm rotor winding
Ruaj peb theem rotor windings ntawm peb theem phom asynchronous lub cev yog feem ntau txuas nrog lub hnub qub thiab kaw hauv lub tshuab, tsis tau kos ib qho nruab nrab nruab nrab. Yog li no, tsuas yog peb kab resistances tuaj yeem ntsuas sab nraum lub tshuab. Yog tias tsis muaj cov cai tswj tshwj xeeb, kev ntsuam xyuas yuav tsum tau muab ntawm peb qho khoom pov npav.
● Kev ntsuas kub ntawm qhov nce ntawm rotor winding
Kev ntsuam xyuas txoj kev thiab kev ntsuas thermal rau xam cov qub stator winding. Nws yuav tsum raug sau tseg tias nyob rau hauv tus txheej txheem ntawm kev ntsuas lub thermal DC tiv thaiv thaum lub sij hawm tus yees nce ntawm kub sawv siab, qhov ob ua ntsuas ntsuas cov cuab yeej txuas nrog lub stator thiab rotor windings tsis tuaj yeem tig tawm qhov fais fab tuag, tsis li ntawm qhov yuam kev electromotive quab yuam cuam tshuam los ntawm cov cua. ntsuas.
